Combined type-writing and computing machine.



fv'. Li GUMFRECH.

COMBINED YP WSHTING :WU COMPUT I ...M W..

W. i.; GUMPREC'lT.

@MSH-En Tvz'w mme AND CQMPUUNG MACHINE,

FLICATION FILED JULY ll, 1913.

Pn'ented Nov. 19, 1918.

Paented Non 19, H18.

WRWNG AND COMPU'IING MACHS mmc/Hmm msn )uw u,

H SHEETS-SHED 9.

l. MIN

the tappets in position En order that this enh* mechanism may not race under the impr. se oit its motive menne, a or retarder i for cushioning the action and disruption of the parte actuxctionesetting,- operation. sion i... further made to prevent the action of the subtraction-Setting oisin during inox-ement of the gen .-.cl operator. Further, means is'proridncfcl. for preventing a sulgitraction setting while the tahulatii'ig mechanism is in play, and a 'further means is provided for preventing the tripping of the su'otrac ion-setting mechanism when the computing mechanism iS thrown out oi operation.

its to these features relating to the subtraction-setting, as far they are found in the application "i'lflf, aoove mentioned, l inake no claim, do claim the specific structure not found in auch application or the prior art.

in case the subtraction-setting mechanism should be only partir. ly actuated so that the mechanism would be neither set for addition nor subtraction, means is provided Jfor preventing the complete actuation of the nu ineral keys, and further actuation of the computing' mechanism, so 'that the ope atii'e would oe aware of the dinar-rangement of 'the parte or the computing Yn'iechanisni.

@ther features and adif'antages will here inafter in the acconipanying drawings- Figure l is a. Sectional yiew taken from front to rear with parte omitted for the salie oi simplicity.

Fig. 2 is an enlarged toggle action for setting subtraction with detail View of the `the mechanism tor the. lock for holding the subtraction rod in its actuated position.

. his lool: shown in effective positi on. the .enhtrafftion rod in itay rear-most pothe Snbtractiorsetting mechanism and niotor-connecting mechanism. Fig. 5 is an enlarged vertical section of the latches 'for he niotor control and the subtractioirsctting control.

`Fig'. i a detail section showing` one of on the hars carried by the. carriage.

Fig'. 7 is a rear View in elevation of the i'nacla whole with par is broken away @l ,Flying struc for preventing the' gever s the e'ectiifeness of the corra carried tappet.

Fig. 9 is a detail View showing the motor trip in rear elevation.

l0 a fragmentary top plan View showing the parte illustrated, in Fig. 9.

Fig. vll is a detail View et a tahulating sion c rried by the carriage, which is inei fective to control the connection oi the i`notor to drive the general operator.

l2 is a detail View oit" a carriagecarried tappet or stop which is eiiective to control the connection of the motor to drive the general operator.

i3 is an enlarged detached top plan View of the pin-setting linkages Showing the saine connected tor an adding operation and with parts broken away to show the pali! ticular iirhearing Structure of the arins on Sonie of the roel; shafts.

M is a View of the parts shown in Fig. i3 taken in Vertical elevation with parte broken away to show the underlying' structure.

Fig. l5 is a detail View of one' of the linhearing arins Showing;- it in its subtracting` position and showing` the relative arrangeincnt of the lin thereon to the locking lin as distinguished troni the i ,l1owing` in Fig. 13.

Fig. is a detail persiv'lective `view of one oi. the Ytin-l'learing arras,

Fig. 17 is a collected View ol the computing mechanism Showing its relation to the computing wheels.

Fig. "i8 is a detail View of the pin-l'learing rack harswitli the means for Setting the il pins. c l

Fig. i9 is an enlarged fragmentary View in Vertical section showing the niechanisn'i in the act of setting the 5) pine and also showing the sulltraction rod as partiall)Y drawn rearwardly by the automatic seul)- traction-sctting inechanlain and in. lart almost in itx` rearinost pieition.

Fig. 2O i5 a detail View ol' one olI the ninhearing rack barn showingl the il M pin rcstoring; har in itsl nnrnial incllectrve poeh Fig. 2l a -riew Similar to Figi'. 20, with the exception that the il pin has heen set up at the saine time that the il pin has heen unset. v

Fig. 22 a top plan View oi" the rack har of lowest dei'ioininalion. that the units or cents rack bar, showingits relation to a Superminicrary har with a cnt-ont portion cr projection carried thereby. whereby the er of lowest denomination maybe given an additional `Step' of niorcnicnl in a subtract ing operation..

Figi. is a vertical section taken at right anfi'lcs to the riz-w shown in Fig. 22 and slmwiirg` the ringer on the superaninici'ary l an additional step ni/nement centr-5 nel.

ot he character or numeral keys by le; ns of a unlversal bar 1%, which in turn i; ac., u,-

ated by a heel y type-bars 5.

ln addition to the step-by-step movement of the carriage 7, provision is made for a jump or tabulating movement. For 'this formed on each ot. t.e

purpose, there are provided tabulat'mg keys,

15, mounted on key-levers 1G, which are pivoted intermediate their ends and support thrust bars or pl angers 1i' at their rear ends. These thrust; bars 17 are arranged to be projected by their associated keys into the path of tappets orstops 18, adjustably mounted on a rack 19 carried by the carriage 7. iVhen any one ol the tabulating keys 15 is dern'essed and thus when any one oi the plungers 17 is raised, the carriage i will be disconnected trom the escapement mechanism 8 by vmeans of a universal lever 20, which engages in a series of notches 21 provided in the plungers 17. r1`his lever 20 when rocked by one of the plungers 17, pulls down on a link which rocks a lever carryingat its front: end a roller 24, which is arranged to littv the rack bar out of mesh with the pinion 11. l

ln addition to actuating the type action or' the type-writing mechanism, the numeral keys 1 are arranged to control a pin-setting mechanism indicated in general atA 25, which sets pinsl 2G mounted on a series o1 bars 2T, which are provided at their front ends with racks 2S engaging with pinions 2f) tor dial or computing,` wheels having numbers on their peripheries arranged to be exhibited through a sight opening` 31 in the casing' 3; of the computing mechanism.

ln. order that any one of the pins it) on the bars 27 may be set, the bar carryingthe pin must be aised above its ellm\'s,'as the pinsetting n'icehanism :'25 has but a limited spluire ot action. For `this purpose, there is provided on the carriage, a tappet 33, which du i a traveling; movement ot' the car- I cranes ;-aicc.e,ssi\.ely into engagement t individuals olf a series ol" iat-ks Sli. one

ks are pivotcd intermediate their ends. so when engaged by the tappe. '5l-"n they be rocked to depress thrust links 35, which are connected to transposition linkaires 3G, which in turn raise the rack bars 2T. rthe linkages 3G invert the order olf action ot the rack bars i2? l'rom that ot' the jacks 3l, so that, the progressive movement' of the can riage which travels trom right. to left, may correspond to the )repressive action ol." the computingr which travels lrom lett to right of the computing wheel`- 30.

The pin-setting mechanism not only sets the. pins QG for addition bui is also capable ot setting them for sul'itriu'tit'm. The p rtict ai' arri rient and action olE the l new be described.

13e-terrine r 1, 13 and l-Ll, it will be seen that eacl. ot' the numeral keys 1. is provided with a thrust link 37, which is arranged to engage an arm on a rock .shaft 39, there being one these arms and one et these re 1l: Vshafts tor each of the numeral keys 'from 1" to 9" ldounted on. the shafts 39, there are. pro- 'ided addition arms 1^, 2A, 3^, el?, 5*, tr", 7^, 8^ and 0^. Each ot' these arn'is is arranged to engage, when the associated arm is depressed, with the corresponding;l one oi a ries of wrist-pins l, 2, 3W, 11W, 5W, 6W, 7, S and 9W on. a series of pin-setting lii'ikagjes 1L, 2L, 3L, 111', 5L, GL, 7L, 8L and 9L. llach ot these linkages, as will be seen by reference to Fig, 1i, comprises an upper reach -ilO and a lower reach -11 parallel to the upper reach l() and connected thereto by a pair of bell crank levers l2 and 13, so that the motion oi the reaches #10 and l1 will always be parallel. These linkages are held normally in close collapse with the lower reach r 11 raised` by means ot one or more springsl 1i. Yihen, however, one of the rock shafts 39 is rotated by the engagement' ot one of the plungers 3i' with the associated arm 3S, then the lower reach l1 will be depressed to engage the opposite pin Q6 on the particular bar 2i' which happens to be raised by the action ot the tappet 33 engaging one ot the jacks 3l. That to say, the pin corresponding' to the par ticui'ar numeral key st ruck will be set on the particular denominational bar corresponding to the denorninational` column being,r written in on the work-sheet on the platen.

.1s-shown in Fig. 13, the parts are in position tor an adding` operation. lf it is desired to perform a subtracting action by the complenientary'niethod, then the parts are moved .trom the position shown in Fie'. Il lo the position shown in Fie'. 19. rthat is to sa all ol' the rot-k .shafts 3i) are mounted to slide in a trame 15 and can be shi'lted 't'roin the Fie'. lf position to the li`igg. 1li) position. to remove all o1" the armsI lt", Q1", 3A. 4^. fr, 6^, 7^, 3^ and 3A out olE enga( ment with `the wrist pins 1W, 2W, 3W, si, 5h, 3W, 7W, and 9W, at the same time moving a series ot arms 1S, 2S, 3S, 4S, fr, (is, TS and into engagement with wristy pins 1P, 2l, 31, l1, 5", (3P, 7l" and 8P on the pin-setting linkages SL. TL, (1L, 5L, 4L, 3L, 2L and 1L` respectively. rl`he arms 1S, 2S, 3S, als, 5, (SS, 7S, and Ss areon the. shafts 39 which correspond to their number and the number ot' the numeral key which actuates these shafts. It will be noted in passing that the arm 5^ corresponding to the numeral key 5, used for bolli addition and substraction. inasmuch as it lies between the 5L and 1 linkages which correspond to the adding ot' five and the hve` respectively. There is no subtraction arm provided :tor tl le il er, as the compleA ment of nine zero in this system.

subtracting' ot" (the pine on t D movement ef bei' and pitting wheel mevement ,i the recit bers to rotate tie eeseeieted eempttaing wheels dependa upon "che ptrtiveuizir pin eL ug) themen, Stated txbeve. 'Eiwexe i by cross '4 en f enn S S L pms e enga!" I e which is teeipreeeted 1n a the goin-.emr 1g recit bers amenit. corresponding te tite-pa upg and se that; on it will return 4the rack here -by eti en each of the rack bars.

e Wiii be seen by reference to Figs. 22 and the crossbar of the generati eper atei' hes :t uniform front edge 71"', except that pertion which comes into engagement with the set piis on the units or @ents be? iiidieated s eeiieeiy at, 7S in Fig. That, is sity, the generai operator cross bei* 7% has a piece 79 eut eutv ef the front edge hereofi which pieee can at times enter its secitet 80, as in :t normal adding eperetiem Se that the units or cents pin-bearing; melt bers wili be given a movement correspend ing tothe particuiar pin set up thereon; or in other Words, the freut, edge of the euteut, portieri 79 Wiii come into ziiitiemetit with :the front 77 of the body porti-.0n of tite emi operator eress intr For a, subtracting operetien, however, this; eut-eut pertionfQ is located forward with its 'front edge/'ette step in advance et the trent edge 7'? of the gemert-ti operator are@ bar 749 so that it will come into Contact 'w whatever pin happens te be en thi or Cents bar one Step prior the engage ment of the trent edge 7? with 'die eerie spending pin en of the other 1i-heink ing rack bers. To maintain this ward pitieement of the cu';-out portion T), there. isvprovided n suprrnumeimy bar 8i eerieraek hars spending to the other pin-beeri1, Q?? with the exception that it is imprmit'en. with a melt m that dees net, Omnputmg; Wiieei direetiy and L A irowfie v s, n e

1th Eins supemumerary b r ever, ffii-ries the eut-eut portieri Se 7 it wii reciprocate with the genemi epi/ritter crees bar l n in the normal nddiu out. portieri 79 will be d emi operator cross edge 77 comes into he at which timeitiie from; edge et the euhm portion 7S wiii iecittei i the front edge ef 'th m -;ements cmrospmding ex set up thereon. t the end Ll. eli the pin-bearing ravit i' one the Las ef -a b it ou the return move- Q15 ment o t Y z 1e superntzmers bar e and the portion 7 #tried ti ereby will i^ bar (me Hep., until 5;

behind cross i latter @Vertr 1 .y when the geiser t operator Cress emu/es te its heine tie-f "Je Sition, the front edge of the eut-out portion '.79 will be ioeated @ne step in nd ence e* L edge 7'? the cross but' as Stated. there, in the subtracting @pern- 4tion it is necessary 'to maintain the cut-eut 8G portion 9 in its advanced lmetimi with reect t0 the general operator cross im' rer thi. purpmet when the 9" pine ere up by tite univergati treme "I2` :t trigger ci:

pivotal y mounted en the supcmmmerziry LA. a U0 Si is 'forced down from n raised pew out of the path of the general operator crests bar tot; de freed Desition with n @heutier thereon m me pmi-i et me nent entre NY kl 7'? of the general operator Cross; intr Tft, the.v engagement oi the 9 pin setting i 1 age 9L with en. upwardlyextending finger S5 on the trigger 83. The trigger 83 is heid in its two positions of adjustment by e vieiding detent F55 having; i spring' arm $67 whirh (sa forces a bail or roiier uiterimticeiy intoY either one of :t pair m" sockets S39 and SNE fH-evided in the trigger That te say, the bali 88 is iocztted in :tu openii m0 supernmnertiry our 8l midis engngmi mi en@ side by the spring firm 87 and ein tire other Side by time trigger $3., :md when (me of the Sockets 89, 90 comes inte regi therewith, the bail drops into the socket heide the t 'gepr 83 in the i:

tion et' udjiuetmmit correfq'mtidi istering of the pnrticuiar soci haii. The up and down meri tr' ger 83 :1re limited. reSpe/ex" iy, j 9i and Q2, whit'h overhang the 'Liep ef the supermimorarjyf' imr F41 :it opp/091i! mi; the pivot m the trigger "iii thus 'De sem [init when tin pins are set up 'for Qubtrecting operntifm the trigger 8.3 will :it the sume time be tepreesed tf; bring; its Silmiider 94- into the path of die general operator Crime: but' /t-v Lhzit tite 'Front ed@ et time eut-out ymitieyi "TU @ni-rieti by the su1erzmmerztry imi: will be nmnnximd mw step in rx( une i the front edge TT iff the citerai miei @ross intr H. whereby 1t i gugezneni with the pertzcxdztr piti happens to 1w set up mitin mii imi' T3 (me step in :,tdrnce mf' tite er sponding rnifngfenwnt with n cori-expanding ti ether piz-wm'ingr ritt-It mrs A.

than., gives to the units 1r Cents wheel rf.

pin set up mi my ment with the 9m' linkage so as to permit an upward movement of this lever simultaneously with a downward movement ot the 9 pin restoring linkage 9m. 1t will thus loe seen that when any numeral key from 1 to l in a subtracting operation is struck, the 9 l pin will he restored and will only remain set up when no numeral .key or the cipher key is struck in a column corresponding to the particular har 27 in action., Y

rlhis operation is continued for each decimal column until the entire number to be subtracted is accumulated by the setting-up of complementary pins on the pin-bearing rack harsn The machine is then in condition for an actuation of the general operator 75, Twhich on its forward movement will engage all or" the set pins and thus rotate all the computing Wheels one complete revolution less the digits of the corresponding keys actuated, or, in other Words, rotate them forwardly an amount corresponding to the complements of the numeral keys actuated, with the exception of the unit-s or cents Wheel, which is rotated one step in excess .of the complenient accumulated therefor.

1n case the 9" key should happen to he struck in the units or cents column in a suhtracting operation, then the 9 pin Awould he unset and no other pin set up on the corresponding` rack har. 1n order, under such circumstances, to give the units or' cents bar an added step movement, a downwardly-extending,Y lug 300 is provided on the units or cents bar 78 in a position one step in advance of the 1 pin, whereby the extension or cut-out portion i 9 will come into engagement therewith during the forward movement of the general operator in subtracting and advance the units or cents rack har and the associated dial Wheel one step.

1n considering the means for driving the general operator it will first be shoovn how this can he controlled manually. At the front of the machine, there is provided a key 1053 (Figs. el and 40) mounted on a stem 10G having,` a vert-ical upand-dmvn play limited hy a pin-and-slot arrangement 107. By depressing the key 105s' against the tension of a spring 1083 a lever 109 is rocked about its pivot 110, so thatfit in turn rocks a lever 11]. Which it overlies and engages at 112. rlhe lever 111 is pivoted intermediate its ends and in turn raises a stop pin 113r` hetween tivo collars 114e and 115 of which it fnglg.

The stop 'pin 113 is normally held in a de presse( position by a sprinfr 11G,(1 `ig. 4) so tin-t it lies in the path ola lug 117 on a clutch hitter 118. The pin 113 normally holds Ythe clutch shifter 118 against the tenlsion or" a swing 119 in a position such that a friction roller or hall 120 will he in its in, eilective position. That is to say, the spring socket,

Lese, is@

119 normally tends to throw the roller or hall 120 into such a position t will form a clutch conm-,ation hetv'e-i a sleeve 121 and a huh 122, hy' the being jammed hetvvecnthe sleeve 121 and the huh For this piu-'pose 'the sleeve .i 121 is provided nvith a cam se 'lct 12a, n" ich tapers from a deep portion one enf'l to a shallow portion at the opposite en l.

llllhen the roller 120 is in the shallow portion or the socket 123 urged by the springr 119, it forms a clutch connection hetiveen the sleeve 121 and lll'hen it is in the deep portion ot' this as determined by the pin 113 ohstructing the movement of the shiiter 118 under the propulsion of the spring 11S), then the sleeve 191 and the huh 122 are freed from connection with each other. rllhis clutch connection forms a means of joining; the general opera tor in driving relation with any form of motor, indicated by the e yctrie motor 124. Thai is to say, the huh 122 s secured to a Worm vvheel 125, which is driven by *a Worm 126 mounted on a shaft 1.27, which also forms a motor shaft 'for the motor 12e. v

The other element of the clutch, to vri, the sleeve 121, is secured to a shaft 38 and ywhich extends loosely through the Worm wheel 125 and is provided at its opposite end with a crank 129 carrie lng a cross head 130, which lies in a guide- Way 131 provided in a reciprocating` slide 132. The slide 132 is provided With an upstandingr arm arranged to engage at its head in a socket 131 secured in any suitable manner to the e'eneral ope/"ai". 75.

lt will thus he seen that when the piu is raised from the -lO'po Fig. 41 position, the spring' 119 is .tree to rotate the clutch shifter 118. so as to bringa the friction roller 120 from the de ep oortion of the socket 123 to the shallow portion thereof, forminga positive connection he tvveen the sleeve 121'and the huh 122, such that the arm 133 Will he oscillated hv the rotation of the motor 124. therelrv giving the general operator 'T5 one complete cycle of movements, that is to say, f haek-and-iferth sliding` motion.

The clutch connection. however.y is ci? the singloacting type. so that the ,f reneral open ator will he given hut one c vcle o movements. That is to sav. the pin 11.3 is returned hy the springe; 11?) to 's normal de pressed position as soon pressure is released on'the ke;7 105:' or any other actuated part. so that it once more lies in the 'oath oi" the lug 117. whereby when tiis lug comes around at the completion oi single rotation of the shaft 12S with the vvor" 4 'wheel 125, then the clutch shifter 118 Will he held 1^ af tionarv While the sleeve 121 and the huh 122 travel on .slightly to bring the clutching the huh 122, All.'

1 nion to tie E oli Siti

ated the, Y mm Mmm. on the n. cam scket 'l B58. ,fn-Ward movmnenz, one of t,

@t 1256 Qngaggeshs head movsmen,

the 29:10PM

operaio? rlme han* my han' n engage zum.

Mas V3.1 sommets( me m' 'more hns U9.

L`\J (D .ny mmc-,fl Column; of @van a may or muy not be assed at@ cone imm of he motor to fue gem in uyuucct up ih@ general 304113).' the pinten,

hc 'form shown in F1 l2 met can* o ming a h posmx one end mf im acum ih of the, 1mm' MSG, SQ 

